Expertise in the Physical
Characterisation of Materials
MCA Services
Unit 1A Long Barn, North End,
Meldreth, Cambridgeshire SG8 6NT UK
01763 262333
© MCA Services
PHARMACEUTICAL ANALYSIS
The physical characteristics of pharmaceutical forms are often critical to
their ultimate effectiveness. Knowledge, understanding and control of
physical properties is fundamentally important to every phase of
pharmaceutical formulation, evaluation, production and QC. Quantification
of physical properties are often classified as being critical within a QbD
framework.
The porous characteristics of pharmaceuticals in many forms, such as APIs,
excipients, powder blends, granules and solid dosages are influential to
pharmaceutical performance and efficiency and have direct effects on
dissolution rate, solubility, tablet strength and hardness, long term stability
and shelf-life.
Key Benefits:
•
Assessment of API and excipient materials
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Analysis of many pharmaceutical forms
•
Investigation of batch failures
•
Investigation of batch-to-batch variability
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Determination of long-term stability & shelf-life
•
Identification of counterfeit pharmaceuticals
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Data interpretation included as standard
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All analyses undertaken to ISO 17025:2017
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Adaptable to different test methods
Measurement of specific surface area (SSA), pore volume, average pore size
and pore size distribution provides essential information for the
characterisation of the porous nature of pharmaceuticals. Porosity within
pharmaceutical materials can be present in various locations: within tablet
cores and coatings, granules, pre-cursor power blend particles as well as
the inter-particle voids within powder blends. All have profound effects on
pharmaceutical efficiency and the characterisation of powder blends allows
for predictions of the solid dosage form to be made and for variability to be
traced.
Gas Adsorption is typically used for SSA measurement, using either
nitrogen or krypton adsorption. Mercury Porosimetry is used for the full
characterisation of pore volume and pore size and is more informative
than SSA by gas adsorption data alone.
Key Techniques:
•
BET surface area (SSA) by nitrogen
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BET surface area (SSA) by krypton for low area samples
•
Mercury Porosimetry for pore volume measurement
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Mercury Porosimetry for pore size distribution
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Mercury Porosimetry for volume (%) porosity measurement
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Micropore analysis for pore volume, area and size measurement
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Bulk (envelope) density measurement
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Analysis of powder blends
•
Analysis of solid dosage forms
At MCA Services we offer a complete suite of techniques for the
characterisation of sample porosity with the experience and expertise to
actively assist with the interpretation of results and their relation to
development and performance criteria. Our ongoing in-house research
continues to highlight the significance of and application of these analytical
techniques to the pharmaceutical sector.
01763262333